package com.battleship.gcm;

import static com.battleship.CommonUtilities.SENDER_ID;
import static com.battleship.CommonUtilities.displayMessage;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

import com.battleship.R;
import com.battleship.R.drawable;
import com.battleship.R.string;
import com.battleship.InternetGameActivity;
import com.battleship.ServerUtilities;
import com.google.android.gcm.GCMBaseIntentService;

public class GCMIntentService extends GCMBaseIntentService {

	private static final String TAG = "GCMIntentService";

	public GCMIntentService() {
		super(SENDER_ID);
	}

	@Override
	protected void onMessage(Context context, Intent intent) {
		Log.i(TAG, "Received message");
		String message = getString(R.string.gcm_message);
		displayMessage(context, message);
		// notifies user
		generateNotification(context, message);

	}

	@Override
	protected void onRegistered(Context context, String regId) {
		Log.i(TAG, "Device registered: regId = " + regId);
		displayMessage(context, getString(R.string.gcm_registered));
		ServerUtilities.register(context, regId);

	}

	@Override
	protected void onUnregistered(Context context, String regId) {
		Log.i(TAG, "Device unregistered");
		displayMessage(context, getString(R.string.gcm_unregistered));
		ServerUtilities.unregister(context, regId);

	}

	@Override
	public void onError(Context context, String errorId) {
		Log.i(TAG, "Received error: " + errorId);
		displayMessage(context, getString(R.string.gcm_error, errorId));
	}

	@Override
	protected boolean onRecoverableError(Context context, String errorId) {
		// log message
		Log.i(TAG, "Received recoverable error: " + errorId);
		displayMessage(context,
				getString(R.string.gcm_recoverable_error, errorId));
		return super.onRecoverableError(context, errorId);
	}

	/**
	 * Issues a notification to inform the user that server has sent a message.
	 */
	private static void generateNotification(Context context, String message) {
		int icon = R.drawable.icon;
		long when = System.currentTimeMillis();
		NotificationManager notificationManager = (NotificationManager) context
				.getSystemService(Context.NOTIFICATION_SERVICE);
		Notification notification = new Notification(icon, message, when);
		String title = context.getString(R.string.app_name);
		Intent notificationIntent = new Intent(context,
				InternetGameActivity.class);
		// set intent so it does not start a new activity
		notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
				| Intent.FLAG_ACTIVITY_SINGLE_TOP);
		PendingIntent intent = PendingIntent.getActivity(context, 0,
				notificationIntent, 0);
		notification.setLatestEventInfo(context, title, message, intent);
		notification.flags |= Notification.FLAG_AUTO_CANCEL;
		notificationManager.notify(0, notification);
	}

}
